/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.tomcat.util.digester;


import org.xml.sax.Attributes;

/**
 * <p> Interface for use with {@link FactoryCreateRule}.
 * The rule calls {@link #createObject} to create an object
 * to be pushed onto the <code>Digester</code> stack
 * whenever it is matched.</p>
 *
 * <p> {@link AbstractObjectCreationFactory} is an abstract
 * implementation suitable for creating anonymous
 * <code>ObjectCreationFactory</code> implementations.
 */
public interface ObjectCreationFactory {

    /**
     * Factory method called by {@link FactoryCreateRule} to supply an
     * object based on the element's attributes.
     *
     * @param attributes the element's attributes
     * @return the created object
     * @throws Exception any exception thrown will be propagated upwards
     */
    Object createObject(Attributes attributes) throws Exception;

    /**
     * @return the {@link Digester} that was set by the
     * {@link FactoryCreateRule} upon initialization.
     */
    Digester getDigester();

    /**
     * Set the {@link Digester} to allow the implementation to do logging,
     * classloading based on the digester's classloader, etc.
     *
     * @param digester parent Digester object
     */
    void setDigester(Digester digester);

}
